using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var initialString = "4366|2d53|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|3f80|0|4248|295f|41c4|19c4|0|268";

        var outputString = string.Join("|", initialString.Split('|').Select(x => x.PadLeft(4,'0')));

        Console.WriteLine(outputString);

    }

}